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Showing 1 to 8 of 8 for “"charge regulation"”.
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Surface Charge Regulation Effects on Fluidic Nanoscale Systems
… is accounted for by coupling these methods with charge regulating theory. The e ects of charge regulation lead to several novel predictions about uidic nanoscale systems including pH dependent conductivities, reduced stability of doped colloidal dispersions, and a dependence of the surface charge …
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Electrostatic, electrokinetic, and ordering properties of concentrated suspensions of polystyrene latex
… and data reduction indicates that surface charge regulation occurs through the adsorption of ions from the suspending medium. An independent non-electrokinetic method of determining ionic adsorption is developed confirming these results. Changes in particle surface properties and …
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Design of a multi-module multi-phase battery charger for the NASA EOS space platform testbed
… of a multi-module, multi-phase (MMMP) battery charger for the NASA Earth Observing System (EOS) is presented. The MMMP converter is comprised of four independent buck converters switched 90° out of phase. The MMMP charger is compared to a single module battery charger, and shown to provide …
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An electrical power system for CubeSats
… a 3.7 V nominal bus voltage. Individual battery charge regulation introduces minor inefficiencies, but allows isolation of cells from the pack in the case of cell failure or degradation. A further advantage is the possibility for multiple energy storage media on the same power bus, allowing for …
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Overcoming barriers in chemistry : a birds eye view of electrostatic fluctuations in fundamental proteins and streamlining inclusivity in the classroom.
… important role in protein biochemistry. The net charge of a protein (Z) can influence the structure, function, and solubility but is often overlooked in classical biochemistry. In Chapter two, I investigate the ability of a Rieske Iron-Sulfur (ISP) metalloprotein to accept an electron with …
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Surfactant Adsorption during Collisions of Colloidal Particles: A Study with Atomic Force Microscopy (AFM)
… ranged. Furthermore, elimination off the surface charge or net surfactant charge eliminates adsorption with decreased solid-solid separation. The magnitude of the changes in surfactant adsorption at decreased separations is shown to scale with the chain length of the surfactant. Surfactant …
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Exploring SOD1 electron transfer, heterodimerization, and hetero-amyloid formation.
… two, I use an analytical method, “protein charge ladders”, to distinguish between electron transfer (ET) and proton-coupled electron transfer (PCET) in a binuclear copper center by directly measuring the change in protein net charge upon reduction/oxidation (ΔZ4ET). Chapter three explores a …
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Ion specific effects on charged interfaces
The physico-chemical phenomena occurring at charged interfaces are specifically affected by the type and the concentration of electrolytes. This has implications both in living and in inorganic systems. The discovery of the ‘ion specific effects’ dates back to Hofmeister (1888), who observed the …